2003, Number 6
Rev Mex Oftalmol 2003; 77 (6)
Estudio comparativo entre erbium-YAG láser y ultrasonido en cirugía de catarata
Morales-Gómez ME, López-Gómez E, Garzón M, Nasser-Nasser L, Chávez-Mondragón E, Cruz-Hernández A
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Language: Spanish
References: 12
Page: 205-208
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ABSTRACT
Purpose: To compare erbium-Yag laser and ultrasound in cataract surgery.Methods: Twenty-four eyes included in two groups were studied: Group one operated with ultrasound and group two with erbium Yag-laser. The trial was realized from December 1999 to April 2000. Type of cataract was nuclear sclerosis (0ne-four) and the mean age was of 56.8 years. A complete preoperative evaluation was performed including endothelial cells count on day 1,7,14,21 and fifth month.
Surgical procedure in both groups was performed with peribulbar anesthesia and phacoemulsification.
Nucleus management and IOL type varied.
Results: In group one the mean time of ultrasound was 3.0 minutes with 30 to 40% of ultrasound power and in group two the mean frequency was 6.9 pulses per second and laser time 7.20 minutes. There were no statically difference between visual acuity, intraocular pressure and endothelial cells count.
Conclusion: We need to improve the Irrigation aspiration system in phacolaser as well as another nucleus technique for erbium yag-laser to have better results.
REFERENCES
Fankhauser F, Roussel P, Steffer J y cols. Clinical studies on the efficiency of high power laser radiation upon some structures of the anterior segment of the eye: first experiences of the treatment of some pathological conditions of the anterior segment of the human eye by means of Q- switched laser system. Int Ophthalmol Clin, 1981; 3:129-139.